from tkinter import *
print("Введите начальный X:")
x = int(input())
print("Введите начальный Y:")
y = int(input())
print("Введите начальный N:")
n = int(input())

coords = [0,0,10,0,10,10,20,10,20,0,30,0,30,20,0,20,0,0]

if n == 0 and x>=0 and x<=500 and y>=0 and y<=500:
    pass
else:
    if n > 0 and 0*n+y>=0 and 0*n+y>=0 and 20*n+x<=500 and 20*n+y<=500:
        pass
    else:
        print("Размер фигуры превышает максимальный размер поля")
        exit()
root = Tk()
root.title("ИТ марафон")
root.geometry("500x500")

canvas = Canvas(bg="white", width=500, height=500)
canvas.pack(anchor=CENTER, expand=1)

canvas.create_polygon(coords[0] *n+x, coords [1] *n+y,
                      coords[2] *n+x, coords [3] *n+y,
                      coords[4] *n+x, coords [5] *n+y,
                      coords[6] *n+x, coords [7] *n+y,
                      coords[8] *n+x, coords [9] *n+y,
                      coords[10] *n+x, coords [11] *n+y,
                      coords[12] *n+x, coords [13] *n+y,
                      coords[14] *n+x, coords [15] *n+y,
                      coords[16] *n+x, coords [17] *n+y)
root.mainloop()
                
